San Francisco's famously cool, foggy climate means many homes have historically skipped central air altogether, but warmer inland-facing neighborhoods and rising indoor temperatures are pushing more homeowners toward ductless mini-splits and heat pumps that handle both heating and occasional cooling efficiently.
Most don't, thanks to the city's cool, marine-layer climate — but warmer microclimates and heat waves are changing that. A ductless mini-split is often more practical than full central air; see installed pricing with our HVAC Installation Cost Calculator.
Expect $6,000-$14,000 depending on system size and home layout, with savings that add up quickly given the city's mild climate. Estimate the payback with our Heat Pump Savings Calculator.
Once a year, ideally in early fall, is standard even in a mild climate — foggy, damp conditions can accelerate wear on older furnaces and ductwork.
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